True Blue(TM) blue-liquid vials are accurate to 0.00050" per inch in all 10 level and plumb working positions. Magnetic edge for strong holding power. Heavy-duty aluminum frame.Lifetime Warranty.
9" heavy-duty torpedo level. Vials read plumb, level, 45 Degrees. Heavy-duty extruded aluminum frame; V-grooved working edge fits on pipe or conduit.